RIGOL Chapter 3 To Set the Horizontal System
3-2 DS8000-R User Guide
To Adjust the Horizontal Time Base
Horizontal time base, also called the horizontal scale, refers to the time of each grid
in the horizontal direction of the screen. It is usually expressed in s/div. The
adjustable range of the horizontal time base is from 200 ps/div to 1 ks/div.
While you change the horizontal time base, the displayed waveforms of all channels
are expanded or compressed horizontally relative to the current selected horizontal
reference baseline (refer to "Horizontal Expansion"). The horizontal time base at
the upper-left corner of the screen will be changed accordingly, as shown in the
figure below.
You can adjust the horizontal time base with the following methods:
Click the horizontal time base label at the top of the screen. The following
window is displayed. Click on the icon at the right side of the Scale input
field to decrease or increase the scale (i.g. enlarge or compress the waveforms). You
can also click the Scale input field to input a specific value with the displayed
numeric keypad.
You can click on the function navigation icon to open the function navigation. Then
click Acquisition → Fine to enable or disable the fine adjustment of the horizontal
time base.
âš« Coarse adjustment: adjusts the horizontal time base of the waveforms of all
channels at 1-2-5 step within the adjustable range.
âš« Fine adjustment: adjusts the horizontal time base of the waveforms of all
channels with a minor step value within the adjustable range.
To Adjust the Horizontal Position
Horizontal position, also called trigger position, refers to the trigger point position of
the waveforms of all channels in the horizontal direction relative to the screen center.
When the waveform trigger point is at the left (right) side of the screen center, the
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